Solve for x
x=12
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30+1.5x-0.75x=39
Subtract 0.75x from both sides.
30+0.75x=39
Combine 1.5x and -0.75x to get 0.75x.
0.75x=39-30
Subtract 30 from both sides.
0.75x=9
Subtract 30 from 39 to get 9.
x=\frac{9}{0.75}
Divide both sides by 0.75.
x=\frac{900}{75}
Expand \frac{9}{0.75} by multiplying both numerator and the denominator by 100.
x=12
Divide 900 by 75 to get 12.
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